by steps
000000 000000
000000
7f7f7f 7f7f7f
7f7f7f
00007f 00007f
00007f
0000ff 0000ff
0000ff
007f00 007f00
007f00
007f7f 007f7f
007f7f
728b89 728b89
728b89
007fff 007fff
007fff
00ff00 00ff00
00ff00
00ff7f 00ff7f
00ff7f
659893 659893
659893
00ffff 00ffff
00ffff
7f0000 7f0000
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7f007f 7f007f
7f007f
58a49e 58a49e
58a49e
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7f00ff
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4bb1a8 4bb1a8
4bb1a8
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7f7fff
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7fff7f 7fff7f
7fff7f
7fffff 7fffff
7fffff
3ebeb2 3ebeb2
3ebeb2
ff0000 ff0000
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31cabd 31cabd
31cabd
ff7f00 ff7f00
ff7f00
ff7f7f ff7f7f
ff7f7f
ff7fff ff7fff
ff7fff
24d7c7 24d7c7
24d7c7
ffff00 ffff00
ffff00
ffff7f ffff7f
ffff7f
ffffff ffffff
ffffff
18e4d2 18e4d2
18e4d2